Mxui.js problem, Cannot read properties of null reading inserBefore

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I have a new app in mendix version 9.13 and a new app in 9.10.1 but i get this error: Cannot read properties of null (reading 'insertBefore') TypeError: Cannot read properties of null (reading 'insertBefore')     at Function.p.injectUrl (http://localhost:8080/mxclientsystem/mxui/mxui.js?637877063041717480:5:13303)     at He (http://localhost:8080/mxclientsystem/mxui/mxui.js?637877063041717480:5:11631)     at l (http://localhost:8080/mxclientsystem/mxui/mxui.js?637877063041717480:5:466)     at http://localhost:8080/mxclientsystem/mxui/mxui.js?637877063041717480:5:5146     at Fe (http://localhost:8080/mxclientsystem/mxui/mxui.js?637877063041717480:5:9702)     at se (http://localhost:8080/mxclientsystem/mxui/mxui.js?637877063041717480:5:5131)     at ce (http://localhost:8080/mxclientsystem/mxui/mxui.js?637877063041717480:5:5484)     at p (http://localhost:8080/mxclientsystem/mxui/mxui.js?637877063041717480:5:651)     at http://localhost:8080/mxclientsystem/mxui/mxui.js?637877063041717480:5:301293     at http://localhost:8080/mxclientsystem/mxui/mxui.js?637877063041717480:5:301339 does anyone know what could be the problem? I deleted mendix completly and reinstalled it. Because i thought it had to do something with the instalation. But it didnt work. So if anyone knows a solution, let me know!
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3 answers
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Hi TImo,

 

Perhaps this forum post will give you the answer you are looking for, if this issue is still occuring: https://forum.mendix.com/link/questions/114947.

 

Jeffrey

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Thought I’d let anyone seeing this thread know that I stopped getting this error after disabling the React Developer Tool extension.

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While disabling extensions could help, the best way to resolve it would be to upgrade to Studio Pro 9.24.4 (or higher) (or Mx10). From the release notes:

  • We fixed an issue where Chrome extensions crashed the client. (Tickets 180229, 180230, 180385, 180405, 180450, 180472, 183144)
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